Anyone know any one of them ?
1. Which type of mutation is responsible for new variations (alleles) of a trait?
2. Which type of mutation results in abnormal amino acid sequence?
3. Which type of mutation stops the translation of the mRNA?
4. A geneticist found that a particular mutation had no effect on the protein coded by a gene. What do you think is the most likely type of mutation in this gene? Why?

1. Missense
2. Missense
3. Nonsense
4. Silent, silent mutations are point mutations that result in the production of the same amino acid that would have been produced without the mutation

Answer Link

adioabiola adioabiola · Answer 2 · 2021-11-06T08:35:09+01:00

The type of mutations in each case are as follows;

Missense mutation
Missense mutation
Nonsense mutation
Silent mutation

For case 1:

Which type of mutation is responsible for new variations (alleles) of a trait?

Answer: Missense mutation: in which case the mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene

For case 2:

Which type of mutation results in abnormal amino acid sequence?

Answer: Same as above (Missense mutation)

For case 3:

Which type of mutation stops the translation of the mRNA?

Answer: Nonsense mutation: which changes an amino acid to a STOP codon, the result of which is premature termination of translation

For case 4:

A geneticist found that a particular mutation had no effect on the protein coded by a gene. What do you think is the most likely type of mutation in this gene? Why?

Answer: Silent mutation: This is because silent mutations do not affect the structure or function of the protein as there is no effect on the amino acid sequence.